Add AdditionalBuiltInsMembers language feature and relevant checks

compiler/testData/diagnostics/testsWithJava8/targetedBuiltIns/unsupportedFeature.kt

@@ -0,0 +1,18 @@
+// !LANGUAGE: -AdditionalBuiltInsMembers
+// SKIP_TXT
+
+class A : java.util.ArrayList<String>() {
+    <!UNSUPPORTED_FEATURE!>override<!> fun stream(): java.util.stream.Stream<String> = super.<!UNSUPPORTED_FEATURE!>stream<!>()
+}
+
+class A1 : java.util.ArrayList<String>() {
+    // TODO: should be allowed
+    <!VIRTUAL_MEMBER_HIDDEN!>fun stream(): java.util.stream.Stream<String><!> = super.<!UNSUPPORTED_FEATURE!>stream<!>()
+}
+
+class B : <!UNSUPPORTED_FEATURE!>Throwable<!>("", null, false, false)
+
+fun foo(x: List<String>) {
+    x.<!UNSUPPORTED_FEATURE!>stream<!>()
+    java.util.ArrayList<String>().<!UNSUPPORTED_FEATURE!>stream<!>()
+}